SAE J2744_200808 PDF

Description

This document presents the requirements for a built-in service port to be used in vehicles intended to comply with Enhanced Evaporative Emissions Requirements. The primary function of the Service Port (Valve Assembly-Evaporative Emission Canister Purge Harness Service) is to provide non-destructive access to the evaporative emissions system to enable testing of the integrity of the system. The Service Port is used to introduce air pressure or fuel vapors into, or evacuates them out of, the system. This access may be used for the following evaluations:

• Evaporative System Certifications
Canister Loading and Purging

• End-of-line Testing
System Integrity

• Service (e.g. OBD MIL on)
Leak Location and Repair Verification

• In-Use Compliance Testing
Canister Loading and Purging

• Inspection/Maintenance Testing
System Integrity and Purge Check

Revision History

Related Info

J2744_202003
2020-03-11
Latest

Stabilized

J2744_200808

2008-08-11
Historical
Issued

DOI: https://doi.org/10.4271/J2744_200808

Issuing Committee:

Fuel Systems Standards Committee

Publisher:

SAE International

Pages: 8

Related Topics:

Evaporative emissions control systems (EVAP)

Pressure

Environmental regulations and standards

Environmental testing

Valves

Emissions certification

Seals and gaskets

Also known as: SAE J 2744

History

J2744_202003	2020-03-11	Latest	Stabilized
J2744_200808	2008-08-11	Historical	Issued